Underframe for cars and tenders.



J. S. ANDREWS.

UNDERFRAME FOR CARS AND TENDERS.

APPLIOAT ION FILED MAY 11,1908.

Patented Jan. 19. 1909.

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J. s. ANDREWS. UNDERFRAME FOR OAKS AND TENDERS.

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Patented Jan. 19, 1909.

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laness. ANDREWS, or NEW'Y'ORK, n. Y.

UNDEBFRAME non cans AND TENDERS.

Speciiicatipn of Letters Patent.

Patented Jan. 19, 1909.

Application filed. may 11, 1908. Serial N0.432,031

To all whom it may concern:

Be it known that 1, Jules S. ANDREWS, a citizen of the United States, residing at New Yorkcit inthe county of New- York and State of New York, have invented new and useful Improvements in Undcrframes for Cars and Tenders, of which the following is a specification.

M y invention relates to cast steel underfraines especially adapted for freight cars and engine tenders and its object is, prito increase the strength of the underfranie and at the same time reduce its an eightandlessen the cost of manufacture.

1 Another object of the invention is to reduce the .number of different sections of which the underfranie is composed so that it can be made with only a few standard patterns.

In the accompanying drawings Figure l is a topplan view of an underfranie embodying my invention. Fig. 2 is a longituline 2-2 of Fig. 1. Fig. 3 is an elevation of the end sill. Fig. 4 is a sectional view on the line 4% of Fig. 1, showing the body bolster in elevation. Fig. 5 is a sectional View on the line 5-5 of Fig. 1, showing the cross tie, or needle beaur, in elevation. I

Referring to the drawings, the underflil-lllt comprises a single center sill 7 extending throughout the length of the u1idert'raine' and made in asingle casting, two end sills 8 made alike from the same pattern, two body bolsters 9 and two cross ties, or needle beams, 10, all made alike from the same pattern. Thus, these essential parts of the undcrtraine can be made from three patterns. one for the center sill, one for the end sills and one for the body bolsters and cross tics I The center sill 7 is made in a substantially inverted L shape form in cross section and.

provided at suitable intervals with open ings T to reduce its weight, these openings being so disposed that they will not in'i'pair the sirength of the sill. At the lower edges of thcuiutcr sill ar-e outwardly projecting lateral flanges 11 which preferably extend throughout its length to stiiten the sill and provide a rest and fastening part for the body bolsters and cross tics. A plurality of transverse guide lugs 12 are arranged in pairs at proper intcrvals'on the top of the center sill tor a purpose hereafter described.

The middle part oi the center sill is pref- 4 crably inadc deeper than the end parts for greater strength and the ends are reduced or oil'sct at 13 to receive the end sills. Center bearings 14- are'cast integral with the center sill and the latter above said bearings and at out its length with strengthening webs l5.

Each end sill is made in substantially 1. form and is provided at the center with a depending apron or butter plate 16 having an opening 16 for the coupler. The end sills rest in the oifsets 13 of the center sill Zlllld are boltedlto cross webs 17 on the center si 1.

,The body bolster is cast in one piece with an arch 18 at the center conforming to the transverse section of the center sill and to fit snugly thereon. 19 of the arch fits snugly between a pair of guide lugs 12 whereby the bolster is prevented from twisting or weaving and is held in rigid position square with the center sill. Thebolster 9 (Fig. 4) rests upon the flanges 11 andis riveted or bolted thereto.

The cross ties, or necdleheams'lt) (Fig. 5) are made exactly like the bolsters 9 and are arranged in place on the center sill in the same manner. As the cross ties are located between the bolsters where the center sill is deeper than at the bolsters i provide flanges 20 on the center sill upon which the cross may be provided intervals through interiorly located 'ties rest and to which they are riveted or bolted. The bolsters and cross vidcd with side bearings 21 at t). 10. above the side hearings to receive the stringers which may each extend in one piece throughout the length of the underframc. Lugs ties are pro and are depressed tional stringers 2-! and the end sills have integral lugs 25 to support the stringers.

Each side sill consists of a Z-shape bar 26 which rests upon and is riveted or bolted to the ends of the end sills, body bolsters and cross tics and supports the wood sill 27. One end flange 26" of each side sill overlaps the ends of the bolsters, cross ties and end sills and the other end flange 26 projects outwardly from said parts. The end posts stand on the upper flange. 8 of the end sill and a wood end sill 29 is arranged in the end sill 8. The end lining 30 of the car is fastened to the post 28 and the end siding 31 is fastened to the post 28 sill 29. If there should be any appreciable The to or connectin Web 23 are made integral with the bolsters and cross ties to support the sec and to the wood end g erases longitudinal shrinkage of the center sill in casting the predetermined longitudinal interior dimensions of the car may be preserved by properly proportioning the Width of the Wood end sills 29.

The transoms 32 may be made of angle iron and fastened in any suitable manner to the center and sidesills. Braces 33 are arranged at each end of the underframe' and L0 extend diagonally from the end sill, adja cent to the center sill, to the outer ends of the bolster, these braces being connected at their ends to the end sill and thebolster.

1 The principal parts of the underframe are preferably made of steel castings and the construction is such that .the cost of manufacture is .greatly reduced by reason of the few parts andpatterns required.

The Weight of the underframe for a car of a given capacity may be much less than has heretofore been possible while at the same time the strength of the underframe is increased.

What I claim and desire to secure by Letters Patent is:

1. In an undertran'ie for cars and tenders, a center sill extending throughout the length of the under-frame and made in one casting, said center sill'being inverted U-shape in cross section, and transverse strengthening Webs located withiiirsaid center sill. l

2. In an nnderitrame for cars and tenders, a center sill extending throughout the length of the under-frame and made in one casting,

said center sill bein inverted U-shape in cross section, center bearings integral with the center sill, and transverse strengthening webs located within the center sill above said bearings.

40 3. In an underfranie i or cars and tenders, a center sill extending throughout the length of the underframe and made in one casting, and guide lugs integral with the center sill and extending transversely across the top thereof.

1-. In an underirame for cars and tenders, an end sill made in one casting and Lshape in cross section, and an apron integral .vith said end sill and depending il'lQlOflOl'li between its ends.

5. In an underfrainc for cars and tenders, the combination of a center sill, transverse guide lugs on top of the center sill, and a. transverse member ma de in one casting and provided between its ends with an arch to receive said center sill, that part of the transverse member which passes over the center sill being arranged between a pair of said guides. 6, In an underframe for cars and tenders,

sin in the hooked end of said end sill.

8.1km underirame for cars and tenders comprising a center Slll extending throupt out the length oi the underframe and .1'

. in one casting, lateral flanges on said center sill, a pair of bolsters and a plurality of a5 cross ties made alike and each made in a single casting with an arch between its ends to receive the center sill, said bolsters and cross ties being arranged to rest upon said flanges, the ends of said center sill being oifso set, end sills secured in the ofi'setlends of the center sill, and Z-bars fastened to the ends of the bolsters, cross ties and end sills, each of said side sills having one end flange overlapping the bolsters, cross ties and end sills 5 and its other end flange projecting outwardly therefrom.

9. In an nnderfraine for cars and tenders,

a center sill having its end ofiset, and an end sill L-shape in cross section and seated in said offset.

10. In an underframe for cars and ten ders, a caststeel center sill made in substantially inverted U-shape in cross section and having transverse strengthening 'Webs connecting its sides at intervals throughout its length and below its top ll. In an undcrframe for cars and ten-\ ders, a cast steel center ,made in substantially inverted U-shape in that. section and having integral centerbearings thereon.

12. In an underi'rame for cars and tendors, a cast steel center sill rnad'e insubstantially inverted U-shape in'c'rdss section and. having integral center bearings thereon, and 1 strengthening webs above said bearings and connecting the sides of the center sill.

3. In an underframe for cars and ten ders, the combination of a transverse member having a central arch substantially inverted, U-shapc, and a center sill substantially inverted oi-shape in rross section to lit in said arch and having strengthening webs connect ing its sides and located at inter -als through out its length and beneath its top'.

Lianne .s. ANDREWS.

Witnesses M. 0. BELT, M. A. Knmin. 

